Show INVENT THREAD TO CUT ELECTRIC LIGHTS LIGHT'S COST Now York Jan 26 Prof Herchel Her Her- chel Clifford Ciifford Parker and anti Walter G GClark G. G Clark explained In their Columbia university laboratory today tho the workIngs workIngs workings work- work Ings of or the incandescent lamp the they have hav Invented d With Hh their hellon helion filament Hament fila Ha- men ment 1 they expect to shave electric lighting down third one Its present co cost t Prof Parl Parker er who Is professor of at Columbia and Mr Clark who ho IH is an electrical engineer have collaborated for f several oral years ears in an on effort to find Ind a better medium than carbon The substitute which the they have named hellon helion filament is js composed composed com corn posed largely of or silt silicon con Th The other In Ingredients Ingredients ingredients In- In have ha not ot been divulged The They are aro deposited from gas Jas on a thread of or carbon If IC Immediate manufacture were at attempted attempted attempted at- at tempted tho the hellon helion lamp would cost 10 cents more than titan the other but hut II it Is hoped to lo reduce the cost The lamp however howe Is 19 expected to last twice as aslone long lone as any other besides operating with much ies less current Dr a German announced less than a year ear ago that he had made madea a filament of tantalum It consumed but 1 19 9 watta to the candlepower and was called tho the most startling advance In electric lighting invention ln since Ince the pioneer work of or Edison EdEson Then Dr Kusel announced d from Germany German that he ho had found an Ideal Meal filament in tungsten n another scarce metal It II 1 consumed 1 12 watts atts to In the candle |